1. Tardigrade
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  3. Chemistry
  4. Assertion: H3PO2 has strong reducing property but H3PO4 does not. Reason: P - OH bond present in H3PO4.

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Q. Assertion : $H_3PO_2$ has strong reducing property but $H_3PO_4$ does not.
Reason : $P - OH$ bond present in $H_3PO_4$.

AIIMSAIIMS 2012The p-Block Elements - Part2

Solution:

Oxoacids of phosphorus which contain $P - H$ bond act as reducing agents and reduce metal salts to free metals. Thus, $H _{3} PO _{2}$ act as reducing agent while $H _{3} PO _{4}$ does not.

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